I think it's easier to keep the hard copy you get with the bike in your tank bag.

I keep mine in the slot under the seat designed for it. That way I'll never forget to take it with me when it is in for service at the dealers (although the dealer asked me for it when it was in for it's 1st service and didn't know about the seat slot ! I also had to point out where the key hole for the seat release was)

You can obviously carry the hard copy but it is handy as a backup to have it digitally on your phone, I also have on my phone the digital versions of the operator manuals/user guids for my Navigator V, Garmin Virb camera, Sena BT headset and Biketrac. You would struggle to get these all under the seat!